I shoot a AR with a 26" 1/7 barrel, and mostly use Varget, too, but with 77 gr SMKs.
Almost as good as Varget for me has been TAC, IMR4320, RE15, and WW748.
Varget, TAC, and RE15 are hard to find but the 4320 often shows up locally. It meters better than Varget, and often produces groups...